Advanced Analog Technology, Inc.
May 2008
ELECTRICAL CHARACTERISTICS
temperature, VDD = 5V, VDD1 = 10V.)
( VDD = 2.6V to 5.5V, TC = –40°C to 85°C , unless otherwise specified. Typical values are tested at 25°C ambient
Soft Start & Fault Detect
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
14
MAX UNIT
t
t
Channel 1 Soft Start Time
Channel 2 Soft Start Time
Channel 3 Soft Start Time
ms
ms
ms
SS1
SS2
14
t
14
SS3
D12
t
t
Channel 1 to Channel 2 Delay
Channel 2 to Channel 3 Delay
AAT1168A Only
AAT1168A Only
7
7
ms
ms
D23
AAT1168/AAT1168B
AAT1168A
55
ms
ms
t
FP
During Fault Protect Trigger Time
IN1 Fault Protection Voltage
165
1.05
1.17
0.45
1.05
AAT1168/AAT1168B
AAT1168A
1.00
1.13
0.40
1.00
1.10
1.20
0.50
1.10
V
V
V
V
V
F1
V
IN2 Fault Protection Voltage
IN3 Fault Protection Voltage
F2
V
F3
Error Amplifier (Channel 1)
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX UNIT
V
Feedback Voltage
Input Bias Current
1.221 1.233 1.245
V
IN1
I
V
= 1V to 1.5V
–40
0
40
nA
B1
IN1
Level to Produce
VEO = 1.233V
2.6V < V < 5.5V
V
Feedback-Voltage Line Regulation
0.05
0.15
%/V
RI1
DD
G
∆I = 5
µ
A
µS
Transconductance
Voltage Gain
105
m
A
1,500
V/V
V
–
–
–
Advanced Analog Technology, Inc. –
Version 1.00
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AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
